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VulnerabilityPublished

CVE-2026-112318: Red Hat Enterprise Linux 10 · NULL Pointer Dereference

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium.

Data as of 9 Nov 2026, 20:48 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.16.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10krb5Affected–Fixed in–
Red Hat Enterprise Linux 6krb5Affected–Fixed in–
Red Hat Enterprise Linux 7krb5Affected–Fixed in–
Red Hat Enterprise Linux 8krb5Affected–Fixed in–
Red Hat Enterprise Linux 9krb5Affected–Fixed in–
Red Hat Hardened Imageskrb5Affected–Fixed in–

AI-suggested

Restrict network access to the kadmind service to trusted hosts only. Alternatively, disable kadmind and use the kadmin.local server-side command line tool for administrative operations if feasible. Since kadmind is not enabled by default and typically isolated, limiting exposure reduces risk.

Description

CVE-2026-112318 is a denial of service vulnerability in the MIT Kerberos 5 kadmind service used in Red Hat Enterprise Linux 10. The flaw occurs because the policy RPC stubs do not reject a NULL policy name, leading to a NULL pointer dereference and crash of the kadmind daemon when a remote authenticated user sends a crafted policy request with an empty policy name. This disrupts administrative operations but does not affect standard ticket-granting or authentication services.

References

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